May 4, 20224 yr Hi. Usual stuff, new to Unraid and all... So, I had 2 SSDs (2x480GB) in a cache pool, and decided to add a new one, so that I could hold all my (totally legal) downloading torrents off the spinning drives. I installed a new 1TB SSD, pre-cleared it, stopped the array, assigned it to the pool, started the array, and viola, I still have my 480GB of free space, just as before. Now, it does say that pool size is now 980GB instead of 480, but given the same amount of free space as it was before adding a new drive, I find it hard to not ask "What gives?!" Can someone please point me in the right direction? And if the answer is "start the parity check", then how do I start a parity check on the cache alone? I don't want to spin all the drives for nothing, as I just made a parity check yesterday. Unraid version: 6.9.2 Edited May 4, 20224 yr by semioniy added Unraid version
May 4, 20224 yr Community Expert Solution Free space with an odd number of devices won't be correct, it's a btrfs issue, but the total space is usable and the free space reported will get better as you fill the pool.
May 4, 20224 yr Author Thanx. So the answer was to fill it to the brim. 956GB is not 980, but noticeably better than 480 😁
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